Restorative Dentistry & Endodontics最新文献

{"title":"Comparative analysis of torsional and cyclic fatigue resistance of ProGlider, WaveOne Gold Glider, and TruNatomy Glider in simulated curved canal.","authors":"Pedro de Souza Dias,&nbsp;Augusto Shoji Kato,&nbsp;Carlos Eduardo da Silveira Bueno,&nbsp;Rodrigo Ricci Vivan,&nbsp;Marco Antonio Hungaro Duarte,&nbsp;Pedro Henrique Souza Calefi,&nbsp;Rina Andréa Pelegrine","doi":"10.5395/rde.2023.48.e4","DOIUrl":"https://doi.org/10.5395/rde.2023.48.e4","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to compare the torsional and cyclic fatigue resistance of ProGlider (PG), WaveOne Gold Glider (WGG), and TruNatomy Glider (TNG).</p><p><strong>Materials and methods: </strong>A total of 15 instruments of each glide path system (<i>n</i> = 15) were used for each test. A custom-made device simulating an angle of 90° and a radius of 5 millimeters was used to assess cyclic fatigue resistance, with calculation of number of cycles to failure. Torsional fatigue resistance was assessed by maximum torque and angle of rotation. Fractured instruments were examined by scanning electron microscopy (SEM). Data were analyzed with Shapiro-Wilk and Kruskal-Wallis tests, and the significance level was set at 5%.</p><p><strong>Results: </strong>The WGG group showed greater cyclic fatigue resistance than the PG and TNG groups (<i>p</i> < 0.05). In the torsional fatigue test, the TNG group showed a higher angle of rotation, followed by the PG and WGG groups (<i>p</i> < 0.05). The TNG group was superior to the PG group in torsional resistance (<i>p</i> < 0.05). SEM analysis revealed ductile morphology, typical of the 2 fracture modes: cyclic fatigue and torsional fatigue.</p><p><strong>Conclusions: </strong>Reciprocating WGG instruments showed greater cyclic fatigue resistance, while TNG instruments were better in torsional fatigue resistance. The significance of these findings lies in the identification of the instruments' clinical applicability to guide the choice of the most appropriate instrument and enable the clinician to provide a more predictable glide path preparation.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"48 1","pages":"e4"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c5/cc/rde-48-e4.PMC9982240.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10849939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effects of gingival blood flow on pulpal blood flow detection using ultrasound Doppler flowmetry: animal study.","authors":"Dohyun Kim,&nbsp;Hyoung-Seok Ko,&nbsp;Soo-Yeon Park,&nbsp;Seung-Yeon Ryu,&nbsp;Sung-Ho Park","doi":"10.5395/rde.2023.48.e9","DOIUrl":"https://doi.org/10.5395/rde.2023.48.e9","url":null,"abstract":"<p><strong>Objectives: </strong>This study evaluated the effect of adjacent gingival blood flow on detection of pulpal blood flow (PBF) using ultrasound Doppler flowmetry (UDF) through animal study.</p><p><strong>Materials and methods: </strong>The study included 36 right and left maxillary the third incisors and canines in 9 experimental dogs. The study included 2 main steps: In the first step, the pulse sound level (PSL) was recorded on the cervical part of each tooth without flap elevation (Group 1), with flap elevation (Group 2), and after it was repositioned in place (Group 3). In the second step, the PSL was recorded on the cervical part of each tooth (Group 4), after pulpotomy (Group 5), after partial pulp extirpation (Group 6), after complete extirpation (Group 7), and after canal filling (Group 8). In Groups 5-8, the study was performed with and without flap elevation in the left and right teeth, respectively. The PSL was graded as follows: 0, inaudible; 1, heard faintly; and 2, heard well. The difference between each group was analyzed using Friedman's test with Wilcoxon signed-rank tests (α = 0.05).</p><p><strong>Results: </strong>In step 1, the PSL results were Group 1 > 2 and 3. In step 2, there was no significant difference between the groups when the flap was not elevated, while PSL results were Group 4 > 5 ≥ 6 and 7 ≥ 8 when the flap was elevated.</p><p><strong>Conclusions: </strong>PBF is affected by gingival blood flow when measured with UDF. UDF measurements require isolation of gingiva from the tooth.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"48 1","pages":"e9"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/51/c2/rde-48-e9.PMC9982237.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10849940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antimicrobial and cytotoxic properties of calcium-enriched mixture cement, Iranian propolis, and propolis with herbal extracts in primary dental pulp stem cells.","authors":"Mohammad Esmaeilzadeh,&nbsp;Shirin Moradkhani,&nbsp;Fahimeh Daneshyar,&nbsp;Mohammad Reza Arabestani,&nbsp;Sara Soleimani Asl,&nbsp;Soudeh Tayebi,&nbsp;Maryam Farhadian","doi":"10.5395/rde.2023.48.e2","DOIUrl":"https://doi.org/10.5395/rde.2023.48.e2","url":null,"abstract":"<p><strong>Objectives: </strong>In this study, natural substances were introduced as primary dental pulp caps for use in pulp therapy, and the antimicrobial and cytotoxic properties of these substances were investigated.</p><p><strong>Materials and methods: </strong>In this <i>in vitro</i> study, the antimicrobial properties of calcium-enriched mixture (CEM) cement, propolis, and propolis individually combined with the extracts of several medicinal plants were investigated against <i>Enterococcus faecalis</i>, <i>Escherichia coli</i>, <i>Pseudomonas aeruginosa</i>, and <i>Staphylococcus aureus</i>. Then, the cytotoxicity of each substance or mixture against pulp stem cells extracted from 30 primary healthy teeth was evaluated at 4 concentrations. Data were gathered via observation, and optical density values were obtained using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) test and recorded. SPSS software version 23 was used to analyze the data. Data were evaluated using 2-way analysis of variance and the Tukey test.</p><p><strong>Results: </strong>Regarding antimicrobial properties, thyme alone and thyme + propolis had the lowest minimum inhibitory concentrations (MICs) against the growth of <i>S. aureus</i>, <i>E. coli</i>, and <i>P. aeruginosa</i> bacteria. For <i>E. faecalis</i>, thyme + propolis had the lowest MIC, followed by thyme alone. At 24 and 72 hours, thyme + propolis, CEM cement, and propolis had the greatest bioviability in the primary dental pulp stem cells, and lavender + propolis had the lowest bioviability.</p><p><strong>Conclusions: </strong>Of the studied materials, thyme + propolis showed the best results in the measures of practical performance as a dental pulp cap.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"48 1","pages":"e2"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/97/a1/rde-48-e2.PMC9982242.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9412780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of surrounding and underlying shades on the color adjustment potential of a single-shade composite used in a thin layer.","authors":"Mariana Silva Barros,&nbsp;Paula Fernanda Damasceno Silva,&nbsp;Márcia Luciana Carregosa Santana,&nbsp;Rafaella Mariana Fontes Bragança,&nbsp;André Luis Faria-E-Silva","doi":"10.5395/rde.2023.48.e7","DOIUrl":"https://doi.org/10.5395/rde.2023.48.e7","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the surrounding and underlying shades' effect on the color adjustment potential (CAP) of a single-shade composite used in a thin layer.</p><p><strong>Materials and methods: </strong>Cylinder specimens (1.0 mm thick) were built with the Vittra APS Unique composite, surrounded (dual specimens) or not (simple specimens) by a control composite (shade A1, A2, or A3). Simple specimens were also built only with the control composites. Each specimen's color was measured against white and black backgrounds or the simple control specimens with a spectrophotometer (CIELAB system). The whiteness index for dentistry (WI_D) and translucency parameters (TP₀₀) were calculated for simple specimens. Differences (ΔE₀₀) in color between the simple/dual specimens and the controls were calculated. The CAP was calculated based on the ratios between data from simple and dual specimens.</p><p><strong>Results: </strong>The Vittra APS Unique composite showed higher WI_D and TP₀₀ values than the controls. The highest values of ΔE₀₀ were observed among simple specimens. The color measurements of Vittra APS Unique (simple or dual) against the control specimens presented the lowest color differences. Only surrounding the single-shade composite with a shaded composite barely impacted the ΔE₀₀. The highest CAP values were obtained using a shaded composite under simple or dual specimens.</p><p><strong>Conclusions: </strong>The CAP of Vittra APS Unique was strongly affected by the underlying shade, while surrounding this composite with a shaded one barely affected its color adjustment.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"48 1","pages":"e7"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/bd/5d/rde-48-e7.PMC9982245.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9412777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Appreciation to reviewers and announcement of a new editorial board","authors":"Kyung-San Min","doi":"10.5395/rde.2023.48.e11","DOIUrl":"https://doi.org/10.5395/rde.2023.48.e11","url":null,"abstract":"","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49519096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-plasticity mineral trioxide aggregate and its effects on M1 and M2 macrophage viability and adherence, phagocyte activity, production of reactive oxygen species, and cytokines.","authors":"Betânia Canal Vasconcellos, Layara Cristine Tomaz Tavares, Danilo Couto da Silva, Francielen Oliveira Fonseca, Francine Benetti, Antônio Paulino Ribeiro Sobrinho, Warley Luciano Fonseca Tavares","doi":"10.5395/rde.2023.48.e6","DOIUrl":"10.5395/rde.2023.48.e6","url":null,"abstract":"<p><strong>Objectives: </strong>This study evaluated the effects of high-plasticity mineral trioxide aggregate (MTA-HP) on the activity of M1 and M2 macrophages, compared to white MTA (Angelus).</p><p><strong>Materials and methods: </strong>Peritoneal inflammatory M1 (from C57BL/6 mice) and M2 (from BALB/c mice) macrophages were cultured in the presence of the tested materials. Cell viability (MTT and trypan blue assays), adhesion, phagocytosis, reactive oxygen species (ROS) production, and tumor necrosis factor (TNF)-α and transforming growth factor (TGF)-β production were evaluated. Parametric analysis of variance and the non-parametric Kruskal-Wallis test were used. Results were considered significant when <i>p</i> < 0.05.</p><p><strong>Results: </strong>The MTT assay revealed a significant decrease in M1 metabolism with MTA-HP at 24 hours, and with MTA and MTA-HP later. The trypan blue assay showed significantly fewer live M1 at 48 hours and live M2 at 48 and 72 hours with MTA-HP, compared to MTA. M1 and M2 adherence and phagocytosis showed no significant differences compared to control for both materials. Zymosan A stimulated ROS production by macrophages. In the absence of interferon-γ, TNF-α production by M1 did not significantly differ between groups. For M2, both materials showed higher TNF-α production in the presence of the stimulus, but without significant between-group differences. Likewise, TGF-β production by M1 and M2 macrophages was not significantly different between the groups.</p><p><strong>Conclusions: </strong>M1 and M2 macrophages presented different viability in response to MTA and MTA-HP at different time points. Introducing a plasticizer into the MTA vehicle did not interfere with the activity of M1 and M2 macrophages.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"48 1","pages":"e6"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/04/78/rde-48-e6.PMC9982239.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9412779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Apical periodontitis in mesiobuccal roots of maxillary molars: influence of anatomy and quality of root canal treatment, a CBCT study.","authors":"Samantha Jannone Carrion,&nbsp;Marcelo Santos Coelho,&nbsp;Adriana de Jesus Soares,&nbsp;Marcos Frozoni","doi":"10.5395/rde.2022.47.e37","DOIUrl":"https://doi.org/10.5395/rde.2022.47.e37","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the prevalence of apical periodontitis (AP) in the mesiobuccal roots of root canal-treated maxillary molars.</p><p><strong>Materials and methods: </strong>One thousand cone-beam computed tomography images of the teeth were examined by 2 dental specialists in oral radiology and endodontics. The internal anatomy of the roots, Vertucci's classification, quality of root canal treatment, and presence of missed canals were evaluated; additionally, the correlation between these variables and AP was ascertained.</p><p><strong>Results: </strong>A total of 1,000 roots (692 first molars and 308 second molars) encompassing 1,549 canals were assessed, and the quality of the root canal filling in the majority (56.9%) of the canals was satisfactory. AP was observed in 54.4% of the teeth. A mesiolingual canal in the mesiobuccal root (MB2 canal) was observed in 54.9% of the images, and the majority (83.5%) of these canals were not filled. Significant associations were observed between the presence of an MB2 canal and the quality of the root canal filling and the presence of AP.</p><p><strong>Conclusions: </strong>AP was detected in more than half of the images. The MB2 canals were frequently missed or poorly filled.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"47 4","pages":"e37"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e7/77/rde-47-e37.PMC9715377.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10362537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Endodontic micro-resurgery and guided tissue regeneration of a periapical cyst associated to recurrent root perforation: a case report.","authors":"Fernando Córdova-Malca,&nbsp;Hernán Coaguila-Llerena,&nbsp;Lucía Garré-Arnillas,&nbsp;Jorge Rayo-Iparraguirre,&nbsp;Gisele Faria","doi":"10.5395/rde.2022.47.e35","DOIUrl":"https://doi.org/10.5395/rde.2022.47.e35","url":null,"abstract":"<p><p>Although the success rates of microsurgery and micro-resurgery are very high, the influence of a recurrent perforation combined with radicular cyst remains unclear. A 21-year-old white female patient had a history of root perforation in a previously treated right maxillary lateral incisor. Analysis using cone-beam computed tomography (CBCT) revealed an extensive and well-defined periapical radiolucency, involving the buccal and palatal bone plate. The perforation was sealed with bioceramic material (Biodentine) in the pre-surgical phase. In the surgical phase, guided tissue regeneration (GTR) was performed by combining xenograft (lyophilized bovine bone) and autologous platelet-rich fibrin applied to the bone defect. The root-end preparation was done using an ultrasonic tip. The retrograde filling was performed using a bioceramic material (Biodentine). Histopathological analysis confirmed a radicular cyst. The patient returned to her referring practitioner to continue the restorative procedures. CBCT analysis after 1-year recall revealed another perforation in the same place as the first intervention, ultimately treated by micro-resurgery using the same protocol with GTR, and a bioceramic material (MTA Angelus). The 2-year recall showed healing and bone neoformation. In conclusion, endodontic micro-resurgery with GTR showed long-term favorable results when a radicular cyst and a recurrent perforation compromised the success.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"47 4","pages":"e35"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2d/0a/rde-47-e35.PMC9715368.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10362540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of blood clot, platelet-rich plasma, and platelet-rich fibrin-mediated regenerative endodontic procedures in teeth with periapical pathology: a CBCT study.","authors":"Swati Markandey,&nbsp;Haridas Das Adhikari","doi":"10.5395/rde.2022.47.e41","DOIUrl":"https://doi.org/10.5395/rde.2022.47.e41","url":null,"abstract":"<p><strong>Objectives: </strong>This study compared the clinical and radiological outcomes of regenerative endodontic procedures (REPs) using blood clots (BCs), platelet-rich plasma (PRP), and platelet-rich fibrin (PRF) through intraoral periapical radiography (IOPAR) and cone-beam computed tomography (CBCT).</p><p><strong>Materials and methods: </strong>Forty-five single-rooted necrotic teeth with periapical pathology were randomly allocated to receive BC, PRP, or PRF as an individual scaffold. Outcomes were evaluated in 35 teeth in 23 patients with a follow-up period of 12-24 months through qualitative IOPAR scoring and quantitative CBCT measurements. Healing of periapical lesions and in immature teeth, changes in the apical foramen diameter (AFD), root wall thickness (RWT), and root length (RL) were assessed. A <i>p</i> value less than 0.05 was considered to indicate statistical significance.</p><p><strong>Results: </strong>All teeth were asymptomatic except 1 in the PRP group. Periapical lesion healing was seen in all except 2 teeth in the BC group and 3 in the PRP group. Both IOPAR and CBCT revealed no significant differences in bone healing or changes in AFD, RWT, and RL among the 3 groups. A positive pulp sensibility response to the cold test was seen in 2 teeth in the BC group, but none to the electric pulp test. Intracanal calcification (ICC) was evident in more teeth in the BC group than in the PRP and PRF groups, and was also significantly higher in immature teeth.</p><p><strong>Conclusions: </strong>Our results revealed that BC, PRP, and PRF have similar potential as scaffolds in REPs, and ICC may be a concern for long-term outcomes.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"47 4","pages":"e41"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/43/8d/rde-47-e41.PMC9715374.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10423633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation between different methodologies used to evaluate the marginal adaptation of proximal dentin gingival margins elevated using a glass hybrid.","authors":"Hoda S Ismail,&nbsp;Brian R Morrow,&nbsp;Ashraf I Ali,&nbsp;Rabab El Mehesen,&nbsp;Franklin Garcia-Godoy,&nbsp;Salah H Mahmoud","doi":"10.5395/rde.2022.47.e36","DOIUrl":"https://doi.org/10.5395/rde.2022.47.e36","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the effect of aging on the marginal quality of glass hybrid (GH) material used to elevate dentin gingival margins, and to analyze the consistency of the results obtained by 3 <i>in vitro</i> methods.</p><p><strong>Materials and methods: </strong>Ten teeth received compound class II cavities with subgingival margins. The dentin gingival margins were elevated with GH, followed by resin composite. The GH/gingival dentin interfaces were examined through digital microscopy, scanning electron microscopy (SEM) using resin replicas, and according to the World Dental Federation (FDI) criteria. After initial evaluations, all teeth were subjected to 10,000 thermal cycles, followed by repeating the same marginal evaluations and energy dispersive spectroscopy (EDS) analysis for the interfacial zone of 2 specimens. Marginal quality was expressed as the percentage of continuous margin at ×200 for microscopic techniques and as the frequency of each score for FDI ranking. Data were analyzed using the paired sample <i>t</i>-test, Wilcoxon signed-rank test, and Pearson and Spearmen correlation coefficients.</p><p><strong>Results: </strong>None of the testing techniques proved the significance of the aging factor. Moderate and strong significant correlations were found between the testing techniques. The EDS results suggested the presence of an ion-exchange layer along the GH/gingival dentin interface of aged specimens.</p><p><strong>Conclusions: </strong>The marginal quality of the GH/dentin gingival interface defied aging by thermocycling. The replica SEM and FDI ranking results had stronger correlations with each other than either showed with the digital microscopy results.</p>","PeriodicalId":21102,"journal":{"name":"Restorative Dentistry & Endodontics","volume":"47 4","pages":"e36"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fa/e1/rde-47-e36.PMC9715370.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10362541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}